<template>
  <div>
    <span
      class="weui-switch"
      :class="{ 'weui-switch-on': isChecked }"
      :value="value"
      @click="toggle"
      style="position:relative;"
    >
      <div
        v-if="isChecked && direction.length > 0"
        style="width:100%;height:100%;position:absolute;padding:0 5px;line-height:22px;color:#FFF;user-select:none"
      >
        {{ direction[0] }}
      </div>
      <div
        v-if="!isChecked && direction.length > 0"
        style="width:100%;height:100%;position:absolute;padding:0 5px;right:2px;line-height:22px;color:#fff;text-align:right;user-select:none"
      >
        {{ direction[1] }}
      </div>
    </span>
  </div>
</template>
<script>
export default {
  name: 'switch-component',
  props: {
    value: {
      type: Boolean,
      default: true,
    },
    text: {
      type: String,
      default: '',
    },
  },
  data() {
    return {
      isChecked: this.value,
    }
  },
  computed: {
    direction() {
      if (this.text) {
        return this.text.split('|')
      } else {
        return []
      }
    },
  },
  watch: {
    value(val) {
      this.isChecked = val
    },
    isChecked(val) {
      this.$emit('change', val)
    },
  },
  methods: {
    toggle() {
      this.isChecked = !this.isChecked
    },
  },
}
</script>
<style lang="less" scoped>
.weui-switch {
  text-align: left;
  font-size: 10px;
  display: block;
  position: relative;
  width: 52px;
  height: 24px;
  border: 1px solid #0079de;
  outline: 0;
  border-radius: 16px;
  box-sizing: border-box;
  background-color: #0079de;
  transition: background-color 0.1s, border 0.1s;
  cursor: pointer;
}
.weui-switch:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 50px;
  height: 22px;
  border-radius: 15px;
  background-color: #0079de;
  transition: transform 0.35s cubic-bezier(0.45, 1, 0.4, 1);
}
.weui-switch:after {
  content: '';
  position: absolute;
  top: 1px;
  left: 2px;
  width: 20px;
  height: 20px;
  border-radius: 15px;
  background-color: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  transition: transform 0.35 cubic-bezier(0.4, 0.4, 0.25, 1.35);
}
.weui-switch-on {
  border-color: #0079de;
  background-color: #0079de;
}
.weui-switch-on:before {
  border-color: #0079de;
  background-color: #0079de;
}
.weui-switch-on:after {
  transform: translateX(26px);
}
</style>
